Jackson d



Patented Oct. 21

PUMP.

J. D. GOWAN.

N. PETERS, Pham-Lithographer Walhlngan. D. C.

(N0 Model.)

WITNESSES .54 ad, @A4,

UNTTT. STaTns FTnNT Trice.

JACKSON D. CO\VAN, OF MOKEESPORT, PENNSYLVANIA.

PUMP.

QPECIE'ICATION forming part of Letters Patent No. 306,812, dated October 21, 1884.

A pplication led August '29, 1883.

To alf/f whom, t may concern.:

Be it known that I, JAoKsoN D. CowaN, a citizen of the United States, residing at Mc- Keesport, in the county of Allegheny7 and State ot' Pennsylvania, have invented a new and useful Pump, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to pumps, and is especially adapted for use as a marine or ship pump.

In the drawings, Figure lis a side elevation of my improved pump. Fig. 2 is a vertical longitudinal sectional view ofthe saine. Fig. 3 is a vertical sectional view taken through the bucket and valve-chamber on a line parallel with the hinge of the valves. Fig. 4 is a to p view of the pump. Fig. `5is a detail perspective view ot' the bucket. Fig. 6 is a detail perspective view looking into the bottom ot' the valve-chamber.

Referring to the drawings, A designates the cylinder of the pump, around the bottom of which is secured a separate valve-chamber, B, preferably by heating the top of the `valvechamber until it expands sufficiently to receive the lower end ofthe cylinder, the adjustment of the chamber onto the end ofthe cylinder being limited by small interior shoulders, C C, and when the parts have cooled the chamber. will have shrunk tightly and securely on the cylinder and the joint will be air and water tight. From the bottom edge of the chamber B projects au integral perpendicular flange, D, that elevates the bottom ofthe said valvechamber, so that there will be a ready flow of water into the same. is at one side only, and may be re-enforced by a strip, E, secured to its bottoni.

F is a circumferential interior iiange or ring secured around the bottom edge of the chamber B, and having corresponding recesses, G and H, respectively, in its top and bottom edges and on diametricallyopposite sides. The top edge, I, of the ring F forms the valveseat, and a supporting strip or bar, J, is arranged transversely in the chamber, and has its ends seated in the recesses G Gand flush with the top edge or seat, I. c

K is the valve, which consists of a leather This supporting-tlangeV (No model.)

up in the recesses H H by the nuts Q Q on the v ends of said lbolts N N. By simplyremoving these nuts the parts by which the valve is secured in position can be readily separated, and the valve removed for substitution or repair.

lt is the lift-valve, which is mainly like the entrance-valve in the chamber B, and consists of a circular ring, S, adapted to slidein the cylinder A', and having its downward movement limited by stops or shoulders ll on the interior of the cylinder. The ring S is provided with a cross-bar, U, which is either integral with the ring or secured thereto, and to the top of this bar U is secured a leather disk, V, that is re-ent'orced by segmental plates XV lV, secured to its top surface, and has its edges arranged to come against the top edge ot' the ring S, said edge forming a valve-seat for the disk. The leather disk V forms the packing of the valve and also the hinge for t-he same, and is secured down ouv the crossbar U by means of a longitudinally-disposed washer-strip, Y, through which pass two bolts, Z Z, that converge at their upper ends, A2, and areila-ttened, as at B2 B2, to form the socket for the lift-rod C2 of the pump, and have their lower ends, D, vscrew-threaded and provided with securing-nuts E2 and F, respectively, above the plate or strip Y and under the crossbar U.

G is a collar that is firmly fastened around the top edge of the cylinder A. by heating it until it expands sui'iiciently to receive the cylinder, and then allowing it to cool and shrink on the same. rlhis collar is formed with an outwardly-projecting circumlerential ilange, H2, at its top edge, to which the spout l? is secured by riveting or other suitable means, the bottom plate or ange, J2, being,` secured to said flange HL and provided with an opening, K2, to receive the cylinder. On the upstroke of the bucket the Water readily enters through the bottom valve into the valve-chamber and passes through the bucket on the downstroke ofthe same, and is lifted by the bucket on its next upstroke.

I Claim as my invention# l. The combination of' the ring,` the top edge of' which forms the valveseat, the cross-bar secured to the ring with its top surface llush with the top edge 0l' said ring, the ilexible disk secured on top the said cross-bar, the transverse washer-plate binding the said disk against the cross-bar, and bolts passi ng th rough the \\'asherplate disk and cross-bur and nutled above said Washenplate and below said erosshar, substantially as set forth.

2. The combination of the ring or annular flange having` the corresponding reeesses iu its top and bottoni edges and on diainetrieallyopposite sides, the transverse top and bottom bars seated in the said recesses, the top bar bein g; iiush with the top edge or seat ofthe ri ng, a leather disk secured on top the eross-ba1,seg mental plates secured to the i'aee of said disk, and securing-bolts passed through the disk and cross-bars and secured by elainpingmuts against the under side of the bottom bar, whereby the parts of the valve-securing meehanism can be readily removed, substantially as and for the purpose set forth.

lu testimony that I elaim the foregoing as my own I havehereto affixed my signature in presence ol' two witnesses.

JACKSON l). (.()\VAN.

litnessesz i DANUGL DoNovAN, JERRY. ill. HnAsLm'. 

